手法を比較

	マッチド症例対照研究における曝露勾配評価	コホート研究
分野	疫学	疫学
系統	Process / pipeline	Process / pipeline
提唱年	1970s–1980s	Mid-20th century (formal epidemiological design codified ~1950s)
提唱者	Developed within the matched case-control framework; formalized by Breslow and Day (1980) and Rothman and colleagues	Doll & Hill (British Doctors Study, 1951); Snow (cholera, 1854)
種類	Analytical epidemiological method	Observational longitudinal study design
原典	Rothman, K.J., Greenland, S., & Lash, T.L. (2008). Modern Epidemiology (3rd ed.). Lippincott Williams & Wilkins. ISBN: 978-0781755641	Rothman, K. J., Greenland, S., & Lash, T. L. (2008). Modern Epidemiology (3rd ed.). Lippincott Williams & Wilkins. ISBN: 978-0781755641
別名	matched trend analysis, dose-response in matched designs, exposure-response analysis with matching, matched exposure-gradient analysis	longitudinal study, follow-up study, panel study, incidence study
関連	4	6
概要	Matched dose-response analysis evaluates whether increasing levels of exposure are associated with proportionally increasing (or decreasing) risk of an outcome, within a study where cases and controls — or exposed and unexposed individuals — have been deliberately matched on key confounders such as age, sex, or study site. Matching controls residual confounding structurally, while the dose-response component tests whether the exposure-outcome relationship follows a biologically plausible gradient, strengthening causal inference.	A cohort study assembles a group of individuals who share a common starting point — typically freedom from the outcome of interest — and follows them over time to observe who develops the outcome. By comparing incidence rates between exposed and unexposed subgroups, researchers can estimate relative risk and absolute risk differences. Cohort studies are the gold-standard observational design for measuring disease incidence and establishing temporal relationships between exposure and outcome.